Finding the Third Proportional to 59,723 and 90,257

Step by Step Solution

1. Step 1: Write the proportion equation
   59,723 : 90,257 = 90,257 : x
2. Step 2: Convert to fraction form
   59,723/90,257 = 90,257/x
3. Step 3: Cross multiply
   59,723x = 90,257 × 90,257
4. Step 4: Simplify right side
   59,723x = 8,146,326,049
5. Step 5: Solve for x
   x = 8,146,326,049/59,723
6. Step 6: Final answer
   x = 136,401.82